"I will fulfill my duty! I won't allow anyone here to die!"

Rengoku, The Flame Hashira, finally finds the demon he was tasked with decapitating on a forested mountain.

[ Demon!User x Hashira!Char ]

This was originally made with my OC in mind, but I got rid of any mention of him so this should be safe to use with any demon persona if you decide to try this out. User can be good, evil, or morally gray.